10+ Flowserve Interview Questions and Answers

Flask is lightweight and good for small projects, while Django is more robust and suitable for larger projects.

• Flask is good for small projects with simple requirements

• Django is more suitable for larger projects with complex requirements

• Flask is lightweight and flexible, allowing for more customization

• Django has a lot of built-in features and is more opinionated

• Flask is better for RESTful APIs and microservices

• Django is better for full-stack web applications

• Examples of Flask ...read more

Deep Copy creates a new object with a new memory address while Shallow Copy creates a new reference to the same memory address.

• Deep Copy duplicates the object and its properties while Shallow Copy only duplicates the object reference.

• Object Prototyping is a way to create new objects based on existing objects.

• Prototyping allows for inheritance and the ability to add or override properties and methods.

Python has several built-in datatypes including int, float, bool, str, list, tuple, set, and dict.

• int - represents integers

• float - represents floating-point numbers

• bool - represents boolean values True and False

• str - represents strings

• list - represents ordered sequences of values

• tuple - represents ordered, immutable sequences of values

• set - represents unordered collections of unique values

• dict - represents unordered collections of key-value pairs

Flask is a micro web framework while Django is a full-stack web framework.

• Flask is lightweight and flexible, allowing developers to choose their own libraries and tools.

• Django is a batteries-included framework with built-in ORM, admin interface, and authentication system.

• Flask is ideal for small to medium-sized projects, while Django is better suited for larger, more complex projects.

• Flask has a smaller learning curve and is easier to get started with, while Django has a stee...read more

range and xrange are used to generate a sequence of numbers in Python.

• range returns a list of numbers while xrange returns an iterator object.

• range is memory-intensive while xrange is memory-efficient.

• range is used in Python 3 while xrange is used in Python 2.

• range can take three arguments: start, stop, and step while xrange can take two arguments: start and stop.

Generators are functions that can be paused and resumed, allowing for lazy evaluation of data.

• Generators use the yield keyword to pause execution and return a value.

• They can be used to generate an infinite sequence of values.

• Generators are memory efficient as they only generate values when needed.

• They are commonly used in data processing and asynchronous programming.

Decorators are functions that modify the behavior of other functions or classes without changing their source code.

• Decorators are denoted by the @ symbol in Python.

• They can be used to add functionality to a function or class, such as logging or timing.

• Decorators can also be used to modify the behavior of a function or class, such as adding caching or memoization.

• Decorators can be chained together to apply multiple modifications to a function or class.

Topics in Kafka are logical channels for data storage and communication.

• Topics are categories or feeds to which records are published by producers.

• Consumers subscribe to topics to receive records and process them.

• Each topic is split into partitions for scalability and parallel processing.

• Topics can have multiple partitions to distribute load and increase throughput.

• Example: 'orders', 'payments', 'logs'

OOPs concepts are the principles of object-oriented programming. Function pointers are pointers that point to functions.

• OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation is the process of hiding implementation details and exposing only necessary information.

• Inheritance is the process of creating new classes from existing ones.

• Polymorphism is the ability of objects to take on multiple forms.

• Abstraction is the process of creating a si...read more

JavaScript is a programming language used for creating interactive web pages and web applications.

• JavaScript is a client-side scripting language.

• It is used for adding interactivity to web pages.

• JavaScript can manipulate HTML elements, handle events, and make HTTP requests.

• It supports object-oriented programming and functional programming paradigms.

• Common JavaScript frameworks include React, Angular, and Vue.js.

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine.

• Node.js is used for server-side scripting and building scalable network applications.

• It allows running JavaScript code outside of a web browser.

• Node.js uses an event-driven, non-blocking I/O model for efficiency and scalability.

• It has a rich ecosystem of modules and packages available through npm (Node Package Manager).

Android activity is a single screen with a user interface, while fragment is a modular section of an activity.

• Activity represents a single screen with a user interface.

• Fragments are modular sections of an activity that contribute to the overall user interface.

• Activities can contain multiple fragments, allowing for more flexible and reusable UI designs.

• Fragments can be added, removed, or replaced within an activity at runtime.

• Communication between fragments is typically done t...read more

Writing trigger logic involves defining actions to be taken when a certain event occurs in a database.

• Identify the event that will trigger the logic

• Define the actions to be taken when the event occurs

• Consider any conditions or constraints that need to be met for the trigger to fire

A Batch Class is used in Salesforce to process records in batches.

• Batch classes are used to process large amounts of data in Salesforce.

• They are implemented by implementing the Database.Batchable interface.

• Batch classes have three main methods: start, execute, and finish.

• Example: public class MyBatchClass implements Database.Batchable { // implementation }